Custom EMA Stack + Signals Ai

What your script does (in plain English)
• Plots EMA 8, 21, 50, 100, 200 with toggles to show/hide each one.
• Generates a BUY label when:
• EMA 8 crosses above EMA 50
• AND EMA 50 is above EMA 200 (bullish environment filter)
• Generates a SELL label when:
• EMA 8 crosses below EMA 50
• AND EMA 50 is below EMA 200 (bearish environment filter)
This is a simple trend‑filtered crossover system.